33423213145 has 64 divisors (see below), whose sum is σ = 48122081280. Its totient is φ = 21809564928.

The previous prime is 33423213121. The next prime is 33423213181. The reversal of 33423213145 is 54131232433.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 33423213145 - 2¹³ = 33423204953 is a prime.

It is a super-2 number, since 2×33423213145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11069446 + ... + 11072464.

It is an arithmetic number, because the mean of its divisors is an integer number (751907520).

Almost surely, 2^33423213145 is an apocalyptic number.

33423213145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33423213145 is a deficient number, since it is larger than the sum of its proper divisors (14698868135).

33423213145 is a wasteful number, since it uses less digits than its factorization.

33423213145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its digits is 25920, while the sum is 31.

Adding to 33423213145 its reverse (54131232433), we get a palindrome (87554445578).

The spelling of 33423213145 in words is "thirty-three billion, four hundred twenty-three million, two hundred thirteen thousand, one hundred forty-five".